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i2o_scsi(7d) [sunos man page]

i2o_scsi(7D)							      Devices							      i2o_scsi(7D)

i2o_scsi - an I2O OS specific module that supports SCSA interface. DESCRIPTION
The i2o_scsi OSM module is a SCSI HBA driver that supports the SCSA interface. It supports both SCSI Adapter Class and SCSI Peripheral Class functions. It translates the SCSI packet coming down from the SCSA into an I2O SCSI Peripheral Class message, passes it along to the IOP which in turn passes it to the HDM (hardware specific module). It also uses SCSI Adapter Class functions to manage the SCSI adapter and SCSI bus. For each SCSI Adapter Class I2O device (a SCSI con- troller), it claims the SCSI Peripheral class devices which are attached to that port. The existing SCSI target drivers which use the SCSA interface should only work with i2o_scsi. This includes target drivers like sd, st and so on. FILES
/kernel/drv/i2o_scsi.conf configuration file for the i2o_scsi driver; there are no user-configurable options in this file ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86 | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) Solaris 10 Installation Guide: Basic Installations SunOS 5.10 23 Jan 2001 i2o_scsi(7D)

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scsi_address(9S)					    Data Structures for Drivers 					  scsi_address(9S)

scsi_address - SCSI address structure SYNOPSIS
#include <sys/scsi/scsi.h> INTERFACE LEVEL
Solaris architecture specific (Solaris DDI) DESCRIPTION
A scsi_address structure defines the addressing components for a SCSI target device. The address of the target device is separated into two components: target number and logical unit number. The two addressing components are used to uniquely identify any type of SCSI device; however, most devices can be addressed with the target component of the address. In the case where only the target component is used to address the device, the logical unit should be set to 0. If the SCSI target device supports logical units, then the HBA must interpret the logical units field of the data structure. The pkt_address member of a scsi_pkt(9S) is initialized by scsi_init_pkt(9F). STRUCTURE MEMBERS
scsi_hba_tran_t *a_hba_tran; /* Transport vectors for the SCSI bus */ ushort_t a_target; /* SCSI target id */ uchar_t a_lun; /* SCSI logical unit */ a_hba_tran is a pointer to the controlling HBA's transport vector structure. The SCSA interface uses this field to pass any transport requests from the SCSI target device drivers to the HBA driver. a_target is the target component of the SCSI address. a_lun is the logical unit component of the SCSI address. The logical unit is used to further distinguish a SCSI target device that supports multiple logical units from one that does not. The makecom(9F) family of functions use the a_lun field to set the logical unit field in the SCSI CDB, for compatibility with SCSI-1. SEE ALSO
makecom(9F), scsi_init_pkt(9F), scsi_hba_tran(9S), scsi_pkt(9S) Writing Device Drivers SunOS 5.11 30 Aug 1995 scsi_address(9S)
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